122090781773 has 2 divisors, whose sum is σ = 122090781774. Its totient is φ = 122090781772.

The previous prime is 122090781751. The next prime is 122090781809. The reversal of 122090781773 is 377187090221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64944444964 + 57146336809 = 254842^2 + 239053^2 .

It is a cyclic number.

It is not a de Polignac number, because 122090781773 - 2¹⁴ = 122090765389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122090786773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61045390886 + 61045390887.

It is an arithmetic number, because the mean of its divisors is an integer number (61045390887).

Almost surely, 2^122090781773 is an apocalyptic number.

It is an amenable number.

122090781773 is a deficient number, since it is larger than the sum of its proper divisors (1).

122090781773 is an equidigital number, since it uses as much as digits as its factorization.

122090781773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 122090781773 in words is "one hundred twenty-two billion, ninety million, seven hundred eighty-one thousand, seven hundred seventy-three".